Molecular Structure of 5-Bromo-3-methoxy-2-pyrazinamine (CAS NO.5900-13-0):

Empirical Formula: C₅H₆BrN₃O
Molecular Weight: 204.0246
H bond acceptors: 4
H bond donors: 2
Freely Rotating Bonds: 1
Polar Surface Area: 38.25Ų
Molar Refractivity: 41.04 cm³
Molar Volume: 118.3 cm³
Surface Tension: 59.4 dyne/cm
Index of Refraction: 1.61
Surface Tension: 59.4 dyne/cm
Density: 1.723 g/cm³
Flash Point: 112.1 °C
Enthalpy of Vaporization: 49.96 kJ/mol
Boiling Point: 261.8 °C at 760 mmHg
Vapour Pressure: 0.0113 mmHg at 25°C
Melting point: 138 ºC
SMILES: Brc1nc(OC)c(nc1)N
InChI: InChI=1/C5H6BrN3O/c1-10-5-4(7)8-2-3(6)9-5/h2H,1H3,(H2,7,8)

 5-Bromo-3-methoxy-2-pyrazinamine  ,its cas register number is 5900-13-0. It also can be called 5-Bromo-3-methoxypyrazin-2-ylamine ; 5-bromo-3-methoxypyrazin-2-amine ; 2-pyrazinamine, 5-bromo-3-methoxy- ; 2-Amino-5-Bromo-3-Methoxypyrazine .